Clip for pocket instruments



Got. 13, 1931. J. P. LYNN 1,827,324

cm? FOR POCKET INSTRUMENTS Filed Dec. 30, 1929 Patented Oct 13,1931:

UNITED STATES JOHN P. LYNN, on CHICAGO, ILLINOIS, nssrenonfmo nnrto mCHICAGO, ILLINOIS, A CORPQBAIIONfOEILLINOIS" i our son POCKET;

struction which is simple andi-nexpensive to I 8 produce, which isstrong and durable in service, and which is easily and securelyattachable to the body of the instrument to which it is connected; andthe present improvements were first disclosed in my application for 10patent on pencils, filed December 7 1927, un-

der' Serial No. 238,309, of which the case is a division. I I

In the accompanying drawings I Figure 1 shows by way of exemplification'"1 a pencil, partly in elevation and partly in longitudinal section,otowhich is attached a clip embodying the improved featuresofmy in a edhole'formed in a-lining 19 which option-1" vention'; a

' Fig. 2 is a fragmentary perspect ve vlew of 0 the'clip per se;

' Fig.3 is a similar view of a slightlymodi fied construction'of theclip; and I Fig. 4 is a fragmentary view in'elevation of a pencil bodyadapted for the attachment ethereto'of the present clip.v

In the instrument shown,which is a mechanical pencil, I maycombine';separably ,with a body A aflrelatively rotatable part such as the tip B.The body is shown as'provided with-a slotted axial bore 5 through whichmay .slide non-rotatably a screwthreaded propeller6- having a head 7atone end thereof. This bore in the body extends upwardly, from itslower end for adistance sufficient to accommodate the propellerthroughout its entire range of movement. A lead is advanced through thetip in response to forward movement of the propeller. t v The upperpencil end may be chambered as .C. The closure for this magazine mayconspacedjaws which engagei'ian eraser D, the

retainer being supported within aferrule 10. which extends down overthe. sides of the penciladjacent its upperend. .Preferably' the outersurface of the pencil body is recessed sufliciently to accommodate this"ferrule in The ferrule is detacha'bly-fitted to the pencil at 8 toprovide a magazine for extra-leads flush relation with the remainder ofthe body. j

Tn rEnoII. amma end so asitoper-mit access to the'fleadchamber th rwithim The clip of my invention is applicable to ai pocket instrument ofwhich the construction described is merely typical. As shown, the i Iclip comprises a spring ar "1 11 which may terminate in a ball 12adapted to, rest against the outer side ofa pocket. At its upper end thearm is insetin the form of a" head 13 through which is a hole 14. Atits'oo' V 7 upper extremity the head is provided with one or morelaterally extended teeth 15,-two being the number which is shown. Ascrew '16 having a head 17 is entered through the hole 14'to effect athreaded connection with- 1 1n anopenlng 18 in the pencil body. Theseopenings may be aligne'd'with a screw thread ally is fittedinteriorly ofthe chamber 78. By

. tightening the screw to the position. shown,'!0%

in Fig. 1, its threads take hold with those of the bodyeand/or' liningand atthe same time the teeth 15 enter or bite into-the in axis- Thismanner of attachment not only holds the clip fixedly in place, but also,in I case a lining 19 is used, securesthe latter firmly within thechamber. j

The teeth 15 may be slightly pointed to bite into the instrument body,or as an 'alternative construct-ion they may 'be in the form of a singleblunt'tooth 15,"as suggest-v ed in Fig. 3, adapted to enter a preformedslot 20 vin the bodyof the instrument; In the latter form, the toothconsists merely of a turned end which fits within the slot 20? in such amanner as to prevent swinging movement of the clip when held in place by9 Q thescrew 16. The'parts shown in Figsr3 and 4 correspond largely withthose shown in the remaining figures and are designated by similarreference numerals to which is added 'a prime 1n each instance. i

i Theimprovediclip herein described is advantageous in thatrit issimple, strong, easmarkings forconspicuous display. I

'I claim:

In a pocket instrument having a chambered body and a sleeve forming alining therefor, the body and linin having registering openings withthreads ormed in the lining opening, a clip; having an. apentured headwith an; inturnedvv tooth at one end thereof adapted to bite into thebody of the instrument, and a screw passing through the openings in the"clip head and instrument body for screw-threadedengagement with thethreaded opening in draw the clip head inbed the tooth into thebodytorimmovably secure the units together.

1 testimony whereofilhave hereunto set my hand and afiixed my sealthis-27th. day

of, Deeernben, 1929;

JOHN P. LYNN.

the lining, whereby to toward the lining and

